/* 基本样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    background-color: #2c3e50;
    color: #fff;
    padding: 40px 0;
    text-align: center;
}

header h1 {
    margin-bottom: 10px;
    font-size: 2.5rem;
}

header p {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* 主要内容区域 */
main {
    padding: 40px 0;
}

section {
    margin-bottom: 40px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #ecf0f1;
}

/* PDF容器样式 */
.pdf-container {
    margin-bottom: 20px;
    border: 1px solid #ddd;
}

/* 下载按钮样式 */
.download-section {
    text-align: center;
    margin: 20px 0;
}

.download-btn {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: #2980b9;
}

/* 联系方式样式 */
.contact-info {
    line-height: 2;
}

.contact-info a {
    color: #3498db;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* 页脚样式 */
footer {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header {
        padding: 30px 0;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .pdf-container iframe {
        height: 500px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .pdf-container iframe {
        height: 400px;
    }
    
    section {
        padding: 20px;
    }
}